ul {
    list-style: none;
    margin: 0px;
    padding: 0px;
}

.contain-fluid {
    margin-left: 3px;
    margin-right: 3px;
}

.nav.nav-tabs.nav-underline {
    height: 3rem;
    width: 20rem;
}

a {
    height: 3rem;
    width: 10rem;
}

li.nav-item {
    height: 3rem;
    width: 10rem;
}

.container-fluid {
    position: relative;
}

.table-container {
    padding-left: 0px;
}

.introduce {
    min-width: 8rem;
}

.content {
    padding-left: 0.5rem;
    min-width: 12rem;
}